Cisco Ironport Web Security Appliance vulnerabilities

5 CVEs affecting Cisco Ironport Web Security Appliance, 0 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2021-34749, published 2021-08-18.

Highest priority

Known exploited (CISA KEV) first, then by EPSS exploit probability.

CVE-2021-34749, published 2021-08-18. High severity, CVSS 8.6. EPSS: 1.7% chance of exploitation in the next 30 days. A vulnerability in Server Name Identification (SNI) request filtering of Cisco Web Security Appliance (WSA), Cisco Firepower Threat Defense (FTD), and the Snort detection engine could allow an…
CVE-2021-1516, published 2021-05-06. Medium severity, CVSS 6.5. EPSS: 1% chance of exploitation in the next 30 days. A vulnerability in the web-based management interface of Cisco AsyncOS Software for Cisco Content Security Management Appliance (SMA), Cisco Email Security Appliance (ESA), and Cisco Web Security…
CVE-2012-1326, published 2020-01-15. High severity, CVSS 7.4. EPSS: 0.7% chance of exploitation in the next 30 days. Cisco IronPort Web Security Appliance up to and including 7.5 does not validate the basic constraints of the certificate authority which could lead to MITM attacks
CVE-2012-1316, published 2020-01-15. Medium severity, CVSS 5.9. EPSS: 0.6% chance of exploitation in the next 30 days. Cisco IronPort Web Security Appliance does not check for certificate revocation which could lead to MITM attacks
CVE-2012-0334, published 2020-01-15. Medium severity, CVSS 6.4. EPSS: 0.3% chance of exploitation in the next 30 days. Cisco IronPort Web Security Appliance AsyncOS software prior to 7.5 has a SSL Certificate Caching vulnerability which could allow man-in-the-middle attacks